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C402C captain reported an uncommanded left wing down-force due to a delamination of a portion of the left aileron skin sheet metal.
| Attributes | |
| ACN | 1699799 |
| Time | |
| Date | 201911 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ZZZ.ARTCC |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Aircraft 1 | |
| Make Model Name | Cessna 402/402C/B379 Businessliner/Utiliner |
| Operating Under FAR Part | Part 135 |
| Flight Phase | Descent |
| Component | |
| Aircraft Component | Wing Flight Control Surface |
| Person 1 | |
| Function | Captain Pilot Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument Flight Crew Multiengine |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical |
Narrative:
Upon descent 15-20 miles from the zzzzz for arrival into ZZZ; I felt an un-commanded left wing down force upon the aircraft. I corrected by rolling wings level and looked at the wing and noticed the sheet metal had de-laminated on the inboard forward portion of the left aileron. I conducted a control check and the aircraft responded correctly with control inputs with a bit of extra right aileron force needed to keep the wings level. I continued to ZZZ and landed uneventfully. [The cause was the] age of aircraft or an improper bonding of the sheet metal to the surface underneath.
Original NASA ASRS Text
Title: C402C Captain reported an uncommanded left wing down-force due to a delamination of a portion of the left aileron skin sheet metal.
Narrative: Upon descent 15-20 miles from the ZZZZZ for arrival into ZZZ; I felt an un-commanded left wing down force upon the aircraft. I corrected by rolling wings level and looked at the wing and noticed the sheet metal had de-laminated on the inboard forward portion of the left aileron. I conducted a control check and the aircraft responded correctly with control inputs with a bit of extra right aileron force needed to keep the wings level. I continued to ZZZ and landed uneventfully. [The cause was the] age of aircraft or an improper bonding of the sheet metal to the surface underneath.
Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.